How can you read a text file one line at a time? A. By using the read() command with no parameters. B. By specifying "o" as the mode parameter in the open() command. C. By using the singleLine() string method. D. By using the file object variable as the sequence in a for loop command. After opening a file, how can you advance the file position to a particular offset within the file? A. The only way to get to a particular offset within the file is to first read a particular number of characters. B. By using the position() command, specifying the offset as a parameter. C. By using the seek() command, specifying the offset as a parameter. D. By using an index and square brackets on the file object. What does line.split(";") A. separates the string contained in line at every occurrence of semi-colon B. separates the string contained in line at every occurrence of comma C. separates the string contained in line at the first occurrence of a comma D. concatenates a semi-colon to the end of the string contained in line. After a line is read from a text file, what is the file position? A. The beginning of the file. B. The next line in the file to be read. C. The end of the file. D. Arbitrary.
How can you read a text file one line at a time? A. By using the read() command with no parameters. B. By specifying "o" as the mode parameter in the open() command. C. By using the singleLine() string method. D. By using the file object variable as the sequence in a for loop command. After opening a file, how can you advance the file position to a particular offset within the file? A. The only way to get to a particular offset within the file is to first read a particular number of characters. B. By using the position() command, specifying the offset as a parameter. C. By using the seek() command, specifying the offset as a parameter. D. By using an index and square brackets on the file object. What does line.split(";") A. separates the string contained in line at every occurrence of semi-colon B. separates the string contained in line at every occurrence of comma C. separates the string contained in line at the first occurrence of a comma D. concatenates a semi-colon to the end of the string contained in line. After a line is read from a text file, what is the file position? A. The beginning of the file. B. The next line in the file to be read. C. The end of the file. D. Arbitrary.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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How can you read a text file one line at a time?
A. By using the read() command with no parameters.
B. By specifying "o" as the mode parameter in the open() command.
C. By using the singleLine() string method.
D. By using the file object variable as the sequence in a for loop command.
After opening a file, how can you advance the file position to a particular offset within the file?
A. The only way to get to a particular offset within the file is to first read a particular number of characters.
B. By using the position() command, specifying the offset as a parameter.
C. By using the seek() command, specifying the offset as a parameter.
D. By using an index and square brackets on the file object.
What does line.split(";")
A. separates the string contained in line at every occurrence of semi-colon
B. separates the string contained in line at every occurrence of comma
C. separates the string contained in line at the first occurrence of a comma
D. concatenates a semi-colon to the end of the string contained in line.
After a line is read from a text file, what is the file position?
A. The beginning of the file.
B. The next line in the file to be read.
C. The end of the file.
D. Arbitrary.
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